| 时间 | 值 （%） | 世界排名 |
|---|---|---|
| 2016 | 13.272 | 4 |
| 2015 | 12.979 | 9 |
| 2014 | 12.315 | 11 |
| 2013 | 12.046 | 11 |
| 2012 | 11.274 | 14 |
| 2011 | 10.474 | 18 |
| 2010 | 11.859 | 11 |
| 2009 | 13.282 | 10 |
| 2008 | 11.392 | 16 |
| 2007 | 13.46 | 6 |
| 2006 | 13.01 | 5 |
| 2005 | 13 | 10 |
| 2004 | 14.15 | 9 |
| 2003 | 14.02 | 16 |
| 2002 | 13.22 | 22 |
| 2001 | 14.3 | 22 |
| 2000 | 16.8 | 17 |
| 1999 | 23.42 | 14 |
| 1998 | 33.306 | 10 |
| 1997 | 36.37 | 5 |
| 1996 | 44.75 | 5 |
| 1995 | 74.62 | 5 |
| 1994 | 115.71 | 4 |
| 1993 | 280.2 | 3 |
| 1992 | 362.5 | 3 |
| 1991 | 400 | 3 |
| 1990 | 300 | 4 |
| 1989 | 300 | 5 |
| 1988 | 300 | 4 |
| 1987 | 300 | 2 |
| 1986 | 300 | 1 |